Without barriers - guided tour for wheelchair users (duration: 1.30 hour, daily): 38 for a group until 10 persons, 48 until 20 persons

The longest piece of music in the world - 639 years! Guided tour to the John Cage organ project at St. Burchards abbey (duration: 45 minutes, every day except Monday): 3,00 per person, for a group of 15 persons